Golf ball marker



FIG. 1 is a top, front, left side perspective view of a golf ball marker showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof; and,

FIG. 4 is a right side elevational view, the left side elevation, top plan and bottom plan views are identical. 

CLAIM The ornamental design for a golf ball marker, as shown and described. 